JPH06117869A - Additional information displaying method of map information system - Google Patents

Abstract

PURPOSE:To enable a map information system to accurately display required additional information at a designated position by accurately designating the position on a map. CONSTITUTION:The position of each index area EID formed by diving a map on each page CDC in a matrix-like state is indicated by index information CDD and the position of each displacement area EDV formed by diving each index area EID in a matrix-like state is indicated by in-index displacement information CDE. By storing in advance additional information to be displayed together with map information in an additional information file together with positional information, the additional information is displayed at a prescribed position on a screen based on the page CDC, index information CDD, and in- index displacement information CDE.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of displaying additional information in a map information system. With the recent increase in the processing speed of computers, the database of image information has been promoted in various industrial fields. For example, in a map information system used for fire fighting activities or transportation business, a map of a house centered on a target point or a road map to reach the target point is input from a map book in order to display it on the screen. A large amount of image information database is being created.

In order for such a map information system to function effectively, various additional information such as the characteristics of the target object displayed on the map, the usage status of the building, or road information can be read accurately from the screen. It is necessary.

[0003]

2. Description of the Related Art In a conventional map information system, map information obtained by reading a map on each page of a map book is stored in an optical disk or a magnetic disk and the map information including a designated point is searched. Are displayed on the screen of the display device.

Since the map information is stored as image data, it is generally difficult to associate a specific point on the map with the character information added to that point. Various ideas are required to display.

For example, in Japanese Unexamined Patent Publication No. 1-180066, character information input from a keyboard is expanded in an XY memory, and the character information is transferred from the XY memory to a display memory in which map information is expanded. By,
It is shown that map information and character information are combined on the display memory and displayed on the screen.

[0006]

However, in order to properly carry out fire fighting activities, for example, the position of the target object, the height of the building, the situation of the blame facility and the blame route of the building, the elderly people in the building, etc. It is essential to obtain various additional information such as whether or not you live and the shortest transportation route to the target. Therefore, in the map information system, it is necessary to display these additional information at high speed on the screen in association with the position of the target object.

However, in the conventional display method, since character information is designated as XY coordinates on the memory, it is extremely difficult to accurately designate and display the position of the target on the map. Met.

In view of the above problems, it is an object of the present invention to provide a display method capable of accurately designating a position on a map and accurately displaying necessary additional information at the designated position. And

[0009]

In order to solve the above-mentioned problems, the display method according to the invention of claim 1 uses image data based on the map of each page CDC of the atlas as shown in FIGS. Is a method of displaying additional information in a map information system for retrieving map information stored as "" and displaying it on the screen HG of the display device 13, wherein each index is divided into a matrix in the map of each page CDC. The position of the area EID is index information C
The position of each in-index displacement area EDV, which is shown by DD and is divided into a matrix in each in-index area EID, is shown by in-index displacement information CDE, and the additional information to be displayed together with the map information is the display position of each additional information. Is stored in the additional information file 26 together with the position information IPT indicating the map information, and when the map information is displayed on the screen HG, the page CD of the displayed map is displayed.
Based on C, the index information CDD, and the in-index displacement information CDE, the additional information is displayed at a predetermined position on the screen HG.

In the display method according to the invention of claim 2, a layer to be displayed for each of the additional information is registered, and based on the layer specified when the map information is displayed,
Display only the relevant additional information.

[0011]

The area in each page CDC of the map book is divided into a matrix according to the index actually written in the map book. Each partitioned index area EI
The position of D is indicated by the index information CDD.

The EIDs in each index area are further divided into a matrix. The position of each partitioned intra-index displacement area EDV is the intra-index displacement information CDE.
Indicated by.

The additional information such as a memo to be displayed together with the map information is stored in the additional information file 26 together with the position information IPT. When the map information is displayed on the screen,
Additional information is displayed at a predetermined position on the screen based on the displayed page CDC of the map, the index information CDD, and the in-index displacement information CDE.

[0014]

FIG. 1 is a block diagram showing the configuration of a map information system 1 according to the present invention. The map information system 1 includes a processing device 11, an image scanner 12, a display device 13, a magnetic disk device 14, a keyboard 15, a mouse 16 and the like.

The image scanner 12 reads the map information for each page of the map book and inputs the obtained image data (map data) to the processing device 11. At that time, the size and the read density of the reading area are the same in the same group. Therefore, the number of dots in the vertical and horizontal directions of the image data of each page in the same group is the same. The groups will be described in detail later.

On the screen HG of the display device 13, map information of the designated position is displayed. The displayed map information can be scrolled by operating the mouse 16 or the like. By instructing and inputting a spot on the screen HG, it is possible to input additional information (character information) such as a memo associated with the spot.

The magnetic disk device 14 stores a map data file 25, an additional information file 26, and the like. The map data file 25 stores a large number of map data and position information thereof as map information.
The additional information file 26 stores character information (document information) and its position information as additional information.

The memory 22 in the processor 11 is provided with an image area VM in the bitmap format for loading the data in the map data file 25 and the additional information file 26 and developing the image.

Next, the map data and position information stored in the map data file 25 will be described. FIG. 2 is a diagram showing an example of an arrangement state of each page of the map data, FIG. 3 is a diagram showing a division state of one page of the map data, and FIG. 4 is a diagram showing contents of the position information IPT of the additional information file 26. . Note that in FIG. 3A, one page corresponds to the index area E.
3B shows a state in which one index area EID is divided into an intra-index displacement area EDV, respectively.

The map data of the map data file 25 is
For example, it is created based on a commercially available atlas. Atlas is
It is specified by the map book type CDA and the separate volume code CDB. Atlas type CDA is, for example, a “residential map”, a “forest map”, a “road map”, etc., and a classification number is assigned to each of them.

The map data is read and stored for each page of the map book. At that time, the operator registers the position on the map layout coordinate given to each group GP in the map book for each page.

Here, with the group GP, the directions of the maps printed in the map book are the same, the scales are in a predetermined fixed magnification relationship, and the position on the map is direct or It is a set of maps of pages that are indirectly continuous with each other.

One standard scale is set for each group GP. As the standard scale, the scale most frequently used in the group is usually adopted. A certain scale factor for this standard scale, for example, "0.5""1.0"
Map data having a magnification ratio of "1.5", "2.0", "2.5", and "3.0" is qualified to belong to the same group GP.

Therefore, a map having a different direction, a map whose scale is not in a fixed scale relationship, or a map which is not continuous (not adjacent) to any of the maps in the group belongs to a separate group. A group number is assigned to each group GP.

The position of each group GP is determined by the origin position coordinates of the map arrangement coordinates of each group GP in the coordinate plane that manages the entire map information. Note that normal continuous scrolling on the screen HG is possible within the same group. When trying to scroll between different groups, the currently displayed map information (skip source) is deleted from the screen HG, and instead, map information that has been registered in advance to be skipped (skip destination) is displayed. ) Is displayed. This allows pseudo scrolling.

Now, referring to FIG. 2, pages 5, 6, 7 ...
The map data of is registered in the same group GP1. In the group GP1, each page is arranged on the xy coordinate plane, the position of each page is indicated by the xy coordinate of the upper left end of each page, and is managed by the map number based on each xy coordinate. For example, page 5 and page 11 x
Since the y-coordinates are (1,0) or (9,2), respectively, each page has a map number “1-0” or “9”.
-2 ”. Therefore, the map data of each page is specified by the group number and the map number.

In FIG. 2, the size of each page is different because the scale is different.
Pages of standard scale (for example, pages 6 and 7) are rectangles having a size of “2” in both length and width, and a page (for example, page 5) having a scaling factor of “2.0” with respect to standard scale is It becomes a rectangle with a size of "4" both vertically and horizontally.

In FIG. 3A, each page CDC is divided into a matrix. Each partitioned area is an index area EID. The index areas EID are A, B, C ... in the horizontal direction and 1, 2, 3 in the vertical direction.
This is indicated by the in-page index CDD using the code of. For example, the index area EID1 in the second row of the Dth column, which is hatched in the figure, is indicated by the in-page index “D-2”. The number of sections in the vertical and horizontal directions,
Also, the type of code used for the in-page index CDD is usually determined corresponding to the index actually entered in the map book.

In FIG. 3B, each index area EID is divided into a matrix. Each partitioned area is an intra-index displacement area EDV.
The in-index displacement area EDV is indicated by the in-index displacement CDE using the coordinate values in the vertical and horizontal directions.
For example, the in-index displacement region EDV1 in the sixth column and fifth row indicated by hatching in the figure is indicated by the in-index displacement “6-5”.

Therefore, a specific position (area) on the map
Is atlas type CDA, separate volume code CDB, page (page in book) CDC, index CD in page
D and the in-index displacement CDE.
Atlas type CDA is not always necessary.

Now, while the map is displayed on the screen HG, it is possible to input a memo (character information) related to a specific point. At the time of inputting, first, the mouse 16
Use to move the cursor to a specified point on the map and click. By clicking, the dot position data on the screen at that point can be obtained. The processing device 11 displays the screen H
Since the group number of the map displayed on G is recognized, based on that and the dot position data, the position information,
That is, the corresponding map number (page CDC), in-page index CDD, and in-index displacement CDE are obtained.

Also, by clicking the mouse, the screen HG
A memo window is displayed on, so that necessary items can be input from the keyboard 15 or the like. Then, for example, by pressing the enter key, the input character information is converted into the position information I.
It is stored in the additional information file 26 together with PT.

In addition to inputting character information from the keyboard 15, a text file stored in a storage medium,
Alternatively, input from an online connected terminal or the like is also possible. At that time, the position information IPT may be simultaneously input together with the character information.

The contents of the additional information file 26 are displayed on the screen HG.
It is displayed according to the position on the map displayed above. That is, as shown in FIG. 5, when the map MAP1 is displayed on the screen HG, it has the same position information based on the displayed page of the map MAP1, the in-page index CDD, and the in-index displacement CDE. Character information is retrieved from the additional information file 26 and displayed as a memo window WMM1 on the screen HG.

In displaying the character information (memo window WMM1), it is possible to instruct whether or not the display is necessary.
The character information may be displayed only when a display instruction is given. Further, at that time, by registering in different layers according to the content or type of the additional information and designating the layer according to the purpose of display, only the relevant additional information is displayed on the screen HG. You may By doing so, a large amount of additional information can be registered in the additional information file 26 and is easy to see when displayed on the screen HG.

In this way, by registering various additional information to be displayed at an arbitrary point on the map together with the position information IPT in advance, when the map information is displayed on the screen HG, the corresponding additional information is displayed. Can be displayed at each corresponding position.

Further, as the position information indicating the position on the map, the area in each page is index area EI.
It is divided into D and it is further displaced in the index ED
It is divided into V and each area is indexed in the page C
Since it is indicated by the DD and the in-index displacement CDE, it is possible to accurately specify the position on the map and display the additional information at the correct position.

In the above-described embodiment, the display position of the additional information is specified by inputting the position on the screen HG by mouse clicking. However, data such as page CDC, in-page index CDD, in-index displacement CDE, etc. May be input from the keyboard 15 or the like. Although the character information is registered in the additional information file 26, various symbol marks and symbols may be registered in addition to this.
In addition, the configuration and processing contents of the map information system 1 can be variously changed in accordance with the gist of the present invention.

[0039]

According to the present invention, the position on the map can be accurately specified, and the necessary additional information can be accurately displayed at the specified position.

According to the second aspect of the invention, the displayed additional information can be easily viewed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a map information system according to the present invention.

FIG. 2 is a diagram showing an example of an arrangement state of each page of map data.

FIG. 3 is a diagram showing a division state of one page of map data.

FIG. 4 is a diagram showing the contents of position information of an additional information file.

FIG. 5 is a diagram showing an example of additional information displayed on a screen.

[Explanation of symbols]

1 Map Information System 13 Display Device 26 Additional Information File HG Screen IPT Position Information CDC Page CDD In-Page Index (Index Information) CDE In-Index Displacement (In-Index Displacement Information) EID Index Area EDV In-Index Displacement Area WMM1 Memo Window (Additional Information) )

Claims (2)

[Claims] 1. A map information system (1) for retrieving map information stored as image data based on a map of each page (CDC) of an atlas and displaying it on a screen (HG) of a display device (13). ), The position of each index area (EID) partitioned in a matrix in the map of each page (CDC) is indicated by the index information (CDD), and in each index area (EID) ) Indicates the position of each in-index displacement region (EDV) partitioned in a matrix by the in-index displacement information (CDE), and the additional information to be displayed together with the map information is position information indicating the display position of each additional information. It is stored in the additional information file (26) together with (IPT), and the map information is displayed on the screen (HG). When indicated, the page of the map displayed (CDC), the index information (CDD), and the index in the displacement information (CD
A method of displaying additional information in a map information system, characterized in that the additional information is displayed at a predetermined position on the screen (HG) based on E). 2. The display method according to claim 1, wherein a layer to be displayed for each of the additional information is registered, and the corresponding additional information is added based on the layer specified when the map information is displayed. A method for displaying additional information in a map information system, which is characterized by displaying only information.